Chiromys, differ from the African forms by the fact that i
tympanic ring " is completely enclosed by the bulla ossea, t
without osseous connexion with the same." This character
FIG. 260.—Smith's Dwarf Lemur. Microcebus smtthii.
thinks so important as to justify the inclusion of all tl
Mascarene forms in one group as opposed to another groi
consisting of the continental Lemurs. In this event Chiroga
FIG. 261.—Mouse Lemur. Ohirogale coguereJ*.
will have to be separated from its close association with aa^
For the present, however, it is left in the more generally accepte
Microce'bus contains the most minute among the Lemurs. A
smithii has a body only 5 inches long, the tail being anoth€
6 inches. It occurs in Madagascar, and includes five species.
r, the Fat-tailed Lemur, was so called on account of